:root {
    --landing-bg: #ffffff;
    --landing-bg-alt: #f8fafc;
    --landing-text: #0f172a;
    --landing-text-muted: #475569;
    --landing-border: #e2e8f0;
    --landing-primary: #2563eb;
    --landing-primary-hover: #1d4ed8;
    --landing-accent: #8b5cf6;
    --landing-card-bg: #ffffff;
    --landing-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    --landing-shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);
    --landing-radius: 12px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --landing-bg: #0f172a;
        --landing-bg-alt: #1e293b;
        --landing-text: #f1f5f9;
        --landing-text-muted: #94a3b8;
        --landing-border: #334155;
        --landing-primary: #3b82f6;
        --landing-primary-hover: #60a5fa;
        --landing-accent: #a78bfa;
        --landing-card-bg: #1e293b;
        --landing-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --landing-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
    }
}

* { box-sizing: border-box; }

body.landing-page {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: var(--landing-bg);
    color: var(--landing-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body.landing-page a { color: var(--landing-primary); text-decoration: none; }
body.landing-page a:hover { text-decoration: underline; }

.landing-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.landing-container-narrow {
    max-width: 780px;
}

/* ===== NAV ===== */
.landing-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--landing-border);
}

@media (prefers-color-scheme: dark) {
    .landing-nav { background: rgba(15, 23, 42, 0.85); }
}

.landing-nav-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.landing-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none !important;
    letter-spacing: -0.02em;
}

.landing-nav-links {
    display: flex;
    gap: 1.75rem;
    flex: 1;
    justify-content: center;
}

.landing-nav-links a {
    color: var(--landing-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

.landing-nav-links a:hover {
    color: var(--landing-text);
    text-decoration: none;
}

.landing-nav-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.landing-btn-link {
    color: var(--landing-text-muted) !important;
    font-weight: 500;
}

.landing-burger {
    display: none;
    background: transparent;
    border: none;
    color: var(--landing-text);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.4rem;
}

/* ===== BOUTONS ===== */
.landing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    text-decoration: none !important;
    line-height: 1.2;
}

.landing-btn-primary {
    background: var(--landing-primary);
    color: #fff !important;
}

.landing-btn-primary:hover {
    background: var(--landing-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--landing-shadow-lg);
}

.landing-btn-secondary {
    background: transparent;
    color: var(--landing-text) !important;
    border-color: var(--landing-border);
}

.landing-btn-secondary:hover {
    background: var(--landing-bg-alt);
    border-color: var(--landing-primary);
}

.landing-btn-lg {
    padding: 0.95rem 1.75rem;
    font-size: 1.05rem;
}

.landing-btn-block {
    display: flex;
    width: 100%;
}

/* ===== HERO ===== */
.landing-hero {
    padding: 5rem 0 4rem;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(139, 92, 246, 0.08), transparent 60%),
                radial-gradient(ellipse at bottom, rgba(37, 99, 235, 0.06), transparent 60%);
}

.landing-hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin: 0 auto 1.25rem;
    max-width: 880px;
}

.landing-gradient {
    background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.landing-hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--landing-text-muted);
    max-width: 680px;
    margin: 0 auto 2.25rem;
}

.landing-hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.landing-hero-note {
    color: var(--landing-text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.landing-hero-note i {
    color: #16a34a;
    margin-right: 0.25rem;
}

/* ===== SECTIONS ===== */
.landing-section {
    padding: 5rem 0;
}

.landing-section-alt {
    background: var(--landing-bg-alt);
}

.landing-section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.landing-section-subtitle {
    text-align: center;
    color: var(--landing-text-muted);
    font-size: 1.1rem;
    margin: 0 auto 3rem;
    max-width: 640px;
}

/* ===== CARACTERISTIQUES ===== */
.landing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.landing-feature {
    background: var(--landing-card-bg);
    padding: 2rem;
    border-radius: var(--landing-radius);
    border: 1px solid var(--landing-border);
    transition: all 0.2s ease;
}

.landing-feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--landing-shadow-lg);
    border-color: var(--landing-primary);
}

.landing-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
}

.landing-feature h3 {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    font-weight: 700;
}

.landing-feature p {
    margin: 0;
    color: var(--landing-text-muted);
    font-size: 0.95rem;
}

/* ===== STEPS ===== */
.landing-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    counter-reset: step;
}

.landing-step {
    text-align: center;
    padding: 1rem;
}

.landing-step-num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent));
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.landing-step h3 {
    margin: 0 0 0.5rem;
    font-size: 1.2rem;
}

.landing-step p {
    margin: 0;
    color: var(--landing-text-muted);
}

/* ===== PRICING ===== */
.landing-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    align-items: stretch;
}

.landing-price-card {
    background: var(--landing-card-bg);
    border: 1px solid var(--landing-border);
    border-radius: var(--landing-radius);
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    position: relative;
}

.landing-price-featured {
    border-color: var(--landing-primary);
    box-shadow: var(--landing-shadow-lg);
    transform: scale(1.02);
}

.landing-price-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--landing-primary);
    color: #fff;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.landing-price-card h3 {
    margin: 0 0 0.75rem;
    font-size: 1.15rem;
    color: var(--landing-text-muted);
    font-weight: 600;
}

.landing-price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
}

.landing-price-desc {
    color: var(--landing-text-muted);
    margin: 0 0 1.5rem;
    font-size: 0.9rem;
    min-height: 2.6em;
}

.landing-price-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.75rem;
    flex: 1;
}

.landing-price-features li {
    padding: 0.4rem 0;
    color: var(--landing-text-muted);
    font-size: 0.95rem;
}

.landing-price-features i {
    color: var(--landing-primary);
    margin-right: 0.5rem;
}

.landing-pricing-note {
    text-align: center;
    color: var(--landing-text-muted);
    margin-top: 2rem;
}

/* ===== FAQ ===== */
.landing-faq {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.landing-faq-item {
    background: var(--landing-card-bg);
    border: 1px solid var(--landing-border);
    border-radius: var(--landing-radius);
    padding: 0;
    overflow: hidden;
}

.landing-faq-item summary {
    padding: 1.1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.landing-faq-item summary::-webkit-details-marker { display: none; }

.landing-faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--landing-text-muted);
    font-size: 0.85rem;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.landing-faq-item[open] summary::after {
    transform: rotate(180deg);
}

.landing-faq-item p {
    margin: 0;
    padding: 0 1.25rem 1.25rem;
    color: var(--landing-text-muted);
}

/* ===== CTA FINAL ===== */
.landing-cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--landing-primary), var(--landing-accent));
    color: #fff;
    text-align: center;
}

.landing-cta h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.landing-cta p {
    font-size: 1.1rem;
    opacity: 0.95;
    margin: 0 0 2rem;
}

.landing-cta .landing-btn-primary {
    background: #fff;
    color: var(--landing-primary) !important;
}

.landing-cta .landing-btn-primary:hover {
    background: #f1f5f9;
    color: var(--landing-primary-hover) !important;
}

/* ===== FOOTER ===== */
.landing-footer {
    background: var(--landing-bg-alt);
    border-top: 1px solid var(--landing-border);
    padding: 3rem 0 1.5rem;
}

.landing-footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
}

.landing-footer-col h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 700;
}

.landing-footer-col p {
    color: var(--landing-text-muted);
    margin: 0;
    font-size: 0.95rem;
}

.landing-footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.landing-footer-col li {
    padding: 0.3rem 0;
}

.landing-footer-col a {
    color: var(--landing-text-muted);
    font-size: 0.95rem;
}

.landing-footer-col a:hover {
    color: var(--landing-primary);
}

.landing-footer-bottom {
    max-width: 1140px;
    margin: 2.5rem auto 0;
    padding: 1.5rem 1.5rem 0;
    border-top: 1px solid var(--landing-border);
    text-align: center;
    color: var(--landing-text-muted);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
    .landing-nav-links { display: none; }
    .landing-nav-actions .landing-btn-link { display: none; }
    .landing-burger { display: inline-flex; }

    .landing-nav.landing-nav-open .landing-nav-links {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--landing-bg);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 0.75rem;
        border-bottom: 1px solid var(--landing-border);
    }

    .landing-footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .landing-price-featured { transform: none; }
}

@media (max-width: 540px) {
    .landing-hero { padding: 3rem 0 2.5rem; }
    .landing-section { padding: 3.5rem 0; }
    .landing-cta { padding: 3.5rem 0; }
    .landing-footer-inner { grid-template-columns: 1fr; gap: 1.75rem; }
    .landing-hero-ctas { flex-direction: column; }
    .landing-hero-ctas .landing-btn { width: 100%; }
}